Spectral density enhancement using coherent WDM

Andrew D. Ellis; Fatima C. Garcia Gunning

doi:10.1109/LPT.2004.839393

Spectral density enhancement using coherent WDM

Andrew D. Ellis, Fatima C. Garcia Gunning

Research output: Contribution to journal › Article › peer-review

Abstract

It is shown by numerical simulations that a significant increase in the spectral density of a 40-Gb/s wavelength-division-multiplexing (WDM) system can be obtained by controlling the phase of adjacent WDM channels. These simulations are confirmed experimentally at 40 Gb/s using a coherent,comb source. This technique allows the spectral density of a nonreturn-to-zero WDM system to be increased from 0.4 to 1 b/s/Hz in a single polarization. Optical filter optimization is required to minimize power crosstalk, and appropriate strategies are discussed in this letter. Index Terms-Filtering, optical communication terminals, phase control, wavelength-division multiplexing (WDM).

Original language	English
Pages (from-to)	504-506
Number of pages	3
Journal	IEEE Photonics Technology Letters
Volume	17
Issue number	2
DOIs	https://doi.org/10.1109/LPT.2004.839393
Publication status	Published - Feb 2005

Keywords

spectral density
wavelength-division-multiplexing
single polarization

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10.1109/LPT.2004.839393

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title = "Spectral density enhancement using coherent WDM",

abstract = "It is shown by numerical simulations that a significant increase in the spectral density of a 40-Gb/s wavelength-division-multiplexing (WDM) system can be obtained by controlling the phase of adjacent WDM channels. These simulations are confirmed experimentally at 40 Gb/s using a coherent,comb source. This technique allows the spectral density of a nonreturn-to-zero WDM system to be increased from 0.4 to 1 b/s/Hz in a single polarization. Optical filter optimization is required to minimize power crosstalk, and appropriate strategies are discussed in this letter. Index Terms-Filtering, optical communication terminals, phase control, wavelength-division multiplexing (WDM).",

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AU - Ellis, Andrew D.

AU - Garcia Gunning, Fatima C.

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AB - It is shown by numerical simulations that a significant increase in the spectral density of a 40-Gb/s wavelength-division-multiplexing (WDM) system can be obtained by controlling the phase of adjacent WDM channels. These simulations are confirmed experimentally at 40 Gb/s using a coherent,comb source. This technique allows the spectral density of a nonreturn-to-zero WDM system to be increased from 0.4 to 1 b/s/Hz in a single polarization. Optical filter optimization is required to minimize power crosstalk, and appropriate strategies are discussed in this letter. Index Terms-Filtering, optical communication terminals, phase control, wavelength-division multiplexing (WDM).

KW - spectral density

KW - wavelength-division-multiplexing

KW - single polarization

UR - http://ieeexplore.ieee.org/xpls/abs_all.jsp?arnumber=1386363&tag=1

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M3 - Article

SN - 1041-1135

VL - 17

SP - 504

EP - 506

JO - IEEE Photonics Technology Letters

JF - IEEE Photonics Technology Letters

IS - 2

ER -

Spectral density enhancement using coherent WDM

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Keywords

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